Discussion on the quality of phosphatic ammonium fertilizer products
Thread Content
Dear friends from Sichuan, could you analyze what the factors are?
Factors that affect the quality of phosphate ammonium products include the quality of phosphoric acid, solid content, degree of neutralization, and the stability of phosphoric acid concentration
Ultimately, the primary issue is the quality of phosphate ore; followed by factors such as acid concentration, neutralization degree, nutrient control, and drying temperature during the production of phosphoric ammonium.
The quality of phosphate ammonium products is first influenced by the quality of phosphoric acid, and then by the degree of neutralization and drying temperature during its production
I think this quality should at least include both external and internal quality. The external quality is relatively simple, but in my opinion it’s not easy to control. One factor is whether the particle size is round enough, and this depends on the granulation method (spray drying, drum granulation, or disc granulation – each method yields different results). Another issue is the coloring of phosphate ammonium, as I mentioned in a previous post; what color is the most suitable? Personally, I think no coloring is the best option, but farmers don’t accept that – actually, it’s the intermediaries who don’t accept it! It’s frustrating~·····) As for internal quality, it’s sufficient as long as the total nutrients and individual nutrients meet the standards; this shouldn’t be too difficult
Quality of ammonium phosphate: total nutrients, available phosphorus, nitrogen content. Water-soluble phosphorus, moisture content, particle size, color. Factors to consider include acid concentration, solid content, impurities in the acid, control over the production process, and control of internal and external coloring, among others
I believe that factors such as phosphate clarity, gypsum content, phosphate temperature, liquid-phase sulfur trioxide, impurity content, and the stability of phosphate production during neutralization have the greatest impact on phosphammonium products
I believe that, in addition to having appropriate nutrient content, the quality of ammonium phosphate depends crucially on its appearance: the particle size should be uniform, the shape should be regular, and it should have a crystalline appearance. To ensure good visual quality in ammonium phosphate, it is necessary to control various parameters such as the quality of phosphoric acid, the concentration of the slurry, the amount of spray applied, the amount of material returned, the granulation temperature, and the degree of neutralization. The granulator is like an artist who must take all these factors into account, apply them flexibly, and manage the amount of liquid phase in just the right way in order to produce high-quality diammonium phosphate.
Seeing the title, many might disagree, but what I want to say is that frontline leaders are under pressure from middle-level managers. The immense pressure from top management leads to a desperate pursuit of output, which is the biggest mistake (as it results in no guarantee of product quality). Leadership attention is the greatest guarantee for ensuring product quality. Our company’s leadership now pays close attention to the proper operation of the entire system, ensures balanced progress through all stages of production, and is striving for normal production conditions. Instead of focusing on individual output levels, emphasis is placed on maintaining a steady production volume across the entire workshop, and all production indicators have now met the required standards.
When others buy your diammonium phosphate, they mainly consider the total nutrient content (nitrogen and phosphorus), as well as the color of the outer surface, particle size, and the severity of caking. As a manufacturer, controlling the quality of diammonium phosphate should focus on aspects such as phosphoric acid concentration, moisture content in the ammonium phosphate, and the temperature of the finished product – these are all key factors that affect the quality of the final product
The quality of phosphate ammonium products includes both internal and external quality
The visual quality of phosphatic ammonium products is very important; it needs to be well controlled, and this starts with ensuring the quality of phosphate ore
Floor 8 shares my view: factors such as phosphate clarity, impurity content, phosphate temperature, liquid-phase sulfur trioxide, and the degree of neutralization, along with the stability of phosphate production, have the greatest impact on the quality of phosphoric ammonium products
Issues affecting the quality of monoammonium phosphate: 1. Total nutrients, which are primarily determined by the impurity content in phosphate rocks and phosphoric acid; if the solid content in phosphoric acid is high, the total nutrients will inevitably be low； II: For the single nutrient nitrogen, it is mainly influenced by the neutralization degree and granulation temperature. III: Appearance, which is primarily influenced by the amount of recycled material, granulation temperature, degree of neutralization, as well as the granulation gun and air pressure, along with the efficiency of screening.